US3920043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low noise faucet
Assignee: Trane US Inc
•
Filing: 1974-10-09
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Granted: 1975-11-18
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Expires: 1994-10-09
Abstract
Abstract An improved water faucet having a valve body with control elements formed by two discs wherein the first disc is stationary and has water inlet openings and an outlet opening, connected on one side to the valve manifold. The other side is directed toward the second disc, which is movably arranged on the first disc. The second disc has a surface cavity of the second disc and being spaced from the ceiling thereof to form a chamber which aids in reducing the cavitation noise of the valve.
Inventors
- 👤 Andrew J Fowell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:37
CPC Classifications
F; F16; F16K; F16K47/00; F16K47/02; F16K47/026; F16K11/00; F16K11/02; F16K11/06; F16K11/078; F16K11/0782; F16K11/0787; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86549; Y10T137/86815
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
122 words
In a water faucet having a valve body with control elements formed by two disc, the first disc being stationary and having water inlet openings and water outlet opening connected on one side to a valve manifold and on the other side directed towards the second disc which is movably arranged on the first disc, the second disc having a surface cavity arranged and constructed to overlap the inlet openings and the outlet opening formed in the first disc, that improvement consisting essentially of: noise reducing means disposed within said surface cavity of the second disc, formed of at least one screen mounted therein at a predetermined distance from the ceiling of said cavity thereby defining a noise-isolating chamber within the cavity.
Claim 2
Dependent Claim
122 words
In a water faucet having a valve body with control elements formed by two disc, the first disc being stationary and having water inlet openings and water outlet opening connected on one side to a valve manifold and on the other side directed towards the second disc which is movably arranged on the first disc, the second disc having a surface cavity arranged and constructed to overlap the inlet openings and the outlet opening formed in the first disc, that improvement consisting essentially of: noise reducing means disposed within said surface cavity of the second disc, formed of at least one screen mounted therein at a predetermined distance from the ceiling of said cavity thereby defining a noise-isolating chamber within the cavity.
Claim 3
Dependent Claim
35 words
The water faucet according to claim 1 wherein said noise-reducing means includes a pair of metal screens coupled together and positioned within said cavity to provide a perforated surface for cavitation bubbles to implode thereon.
Claim 4
Dependent Claim
38 words
The water faucet according to claim 2 additionally comprising a spacer disc mounted against the ceiling of the cavity to provide further means for the reduction of noise caused by the cavitation bubbles entering said noise isolating chamber.
Claim 5
Dependent Claim
43 words
The water faucet as recited in claim 3 additionally comprising at least one spacer ring positioned between the screens and the spacer disc to define said noise isolating chamber and a retaining ring for securing the screens within the cavity in fixed position.
Claim 6
Dependent Claim
36 words
The water faucet as recited in claim 1 wherein the cavity formed in said movable disc includes an integrally formed step of predetermined height for positioning said noise reducing means a predetermined distance from said ceiling.
Claim 7
Dependent Claim
39 words
The water faucet as recited in claim 5 wherein said noise reducing means includes a pair of screens positioned on said step and a retaining ring mounted within said cavity to fix said screens in position on said step.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |